Air filter terminology

Introduction Air filter is mainly used in pneumatic machinery, internal combustion machinery and other fields. Its role is to provide clean air for these mechanical equipments to prevent these mechanical equipments from inhaling the air with foreign particles during work and increase the probability of abrasion and damage.

The main components of the air filter are the filter element and the housing, in which the filter element is the main filter element and is responsible for the filtering of the gas. The housing is the external structure that provides the necessary protection for the filter element. The work requirement of the air filter is to be able to undertake high-efficiency air filtration work without adding too much resistance to the air flow, and can work continuously for a long time.

The classification air filter can be divided into three types according to different forms of action, namely inertial air filter, filter air filter and oil bath air filter.

1. Inertial Air Filter Inertial air filter is based on the working principle of centrifugal force. The inertial air filter will rapidly agitate the air during operation. Since the density of the impurities contained in the air is greater than the density of the air, when the impurities rotate or turn with the air, the inertial effect of the centrifugal force will cause the impurities to naturally follow. Separated from the air, to achieve the purpose of filtration.

2. Filter-type air filter The filter-type air filter adopts filter media as the main filtering method. When the air passes through the filter-type air filter, the metal filter or filter paper will block the impurities in the air, and will They stick to the filter element for air filtration.

3, the oil bath air filter oil bath air filter is the use of rapid rotation of the air to bring the oil, use the viscosity of the oil adsorption of air impurities, and the oil produced by the oil particles will be filter Absorbed, so that the impurities in the air are effectively removed to achieve the effect of filtration.

Air purification filter. They have the following differences:

1: The machine (such as internal combustion engine and air compressor) intake port to clean up the air inhaled;

2: smoke and dust emissions from factories and traffic exhausts must be purified in advance;

3: The space for the purification plant must be a high-efficiency filtration device used in high-grade clean grades.

There is no consistency between the requirements of the test and the technical indicators between the two. The respective standards are also different.